Retired special forces soldier Han Lie opened his eyes, and the time went back five minutes before the apocalypse broke out. The tragedy of the city's fall in his previous life was engraved in his bones. He grabbed a pre-written list of supplies and rushed to the supermarket - water purification equipment, medical kits, seeds, weapons, and even an entire cold storage. When the screams of zombies tore through the night sky, he had already turned on the emergency lights in the safe house. But he was not the only one to come back: biological researcher Su Tang came to the door with virus analysis data and vowed to find out the mastermind behind the scenes. Logistics stationmaster Dong Biao betrayed secretly to save his sister who turned into a zombie. Programmer Zhou Ping used the wireless network to monitor the city's dynamics, and the walkie-talkie in the hands of government dispatcher Luo Lan was connected to the bloody experimental base of the consortium. The cans he hoarded will expire and the bullets will run out, but Han Lie bites the blade and loads the pistol - this time, he wants to recover the old debt with interest.